Cao Liang scribbled and changed the drawings, but it took a pillar of incense to complete the revision.

Of course, this modification is just very sloppy, just a simple drawing that people can understand, if according to the requirements of formal mechanical drawings, Cao Liang's modified part is completely unqualified.

Moreover, Cao Liang has never learned anything about drawing design, and it is almost impossible to draw a real design drawing.

He just crossed out the front part of Ma Jun's original drawings and added a counterweight box, that is, Ma Jun's manpower-drawn trebuchet was changed to a counterweight trebuchet.

The counterweight trebuchet, also known as the counterweight trebuchet and counterweight trebuchet, first originated in Central Asia, probably in the 11th century AD, and has been widely used in Europe after the 12th century. The earliest use on the Chinese battlefield can be traced back to the Mongol army's attack on Xiangyang in the Southern Song Dynasty.

Once the counterweight catapult was put into the battlefield, it caused the greatest shock, the Yuan army moved through the Fan attack to Xiangyang, a cannon hit its tower, the sound was like thunder, the city was turbulent, and the generals of the Song army were more than those who surrendered to the city. What can make the Song army frightened must be an extremely powerful weapon, this trebuchet is also called "Huihui Cannon" because it comes from the Western Regions.

Cao Liang has always been very strange, the trebuchet has been around for at least thousands of years, why for such a long time, has been using a relatively cumbersome and cumbersome manpower pulling method, the Chinese have never invented a counterweight trebuchet?

Seeing Ma Jun's current situation, Cao Liang can be regarded as deeply touched, not that the ancient society lacked genius, but the lack of soil for cultivating and cultivating geniuses, many geniuses with a talent for invention were strangled by this utilitarian and dark society early, the progress of science and technology needs to be passed on from generation to generation, just relying on a few Ma Jun, it is impossible to make a qualitative leap in science and technology.

Cao Liang knew very well that his few light strokes would be a stroke of genius that spanned thousands of years, and because of his crossing, the counterweight catapult that could only appear after a thousand years is now on paper.

This will be an epoch-making breakthrough, at least in the history of weapons development.

Fu Xuan saw Cao Liang draw a large box at the front end of the trebuchet to replace those drawstrings, he couldn't help but be confused, and said, "Brother Cao, what do you mean by drawing this box, and what is the use of this?" ”

Cao Liang smiled and said nothing, this involves a lot of common sense knowledge in physics, which cannot be explained clearly in a sentence or two, he looked at Ma Jun, hoping that he could understand it.

Ma Jun stared at the drawings for a long time, and suddenly his expression was very different, he took a few steps forward, came to Cao Liang, bowed deeply, and said solemnly: "Cao Gongzi is really a genius, Jun ...... Taught. ”

"Mr. Ma understands?"

"Understood, Jun lives in vain, no...... It's not as good as Cao Gongzi Liao Liao, Cao Gongzi will solve the ...... for me Solved the puzzle of a lifetime. Ma Jun was deeply touched.

With Ma Jun's knowledge and talents, such as the principle of counterweights, he only needs a little stroke, and he immediately realizes that just like a man walking in the dark, give him a glimmer of light, and he can find the sun.

Cao Liang said: "This is just a sketch, and it is still far from the real design of a counterweight catapult. ”

"Hehe, it's okay, there's ...... There is Cao Gongzi's genius, and the rest ...... Leave it to the old decay. Ma Jun rubbed his gray beard and smiled happily, much like an old naughty boy.

Although Fu Xuan couldn't understand the drawings, he was in a good mood when he saw Ma Jun, and he was naturally very happy for him.

Ma Jun is proud of his talents, not afraid of power, others can look down on him, but no one will be allowed to insult his invention, it is precisely because of his character that I don't know how many powerful people he has offended in the court, so that he will never meet Huai Cai in his life.

I didn't expect Cao Liang, who I met unexpectedly today, to be able to sympathize with Ma Jun, which is really rare.

Cao Liang looked at the Ma family's mansion with four walls, and he suddenly thought of a problem, if he wanted to research and invent a new type of catapult, it was not enough to have drawings alone, at least to make a sample, and it had to be improved repeatedly, and finally it could be finalized and mass-produced.

But if you rely on Ma Jun's financial resources to do this, it is completely a fool's dream.

Even if Ma Jun designed a chain of thunderbolts, if he wanted to make a sample, he couldn't do it himself, so Ma Jun thought of asking the general Cao Shuang, hoping to conduct experiments in the army.

With Cao Shuang's urine, he categorically would not pay attention to these things, and the wood and accessories required to build a larger equipped catapult were several times more, and without the financial support of the imperial court, it was indeed difficult to do this.

"With Mr. Ma's conditions, I'm afraid I can't get a sample, right?"

Ma Jun's expression darkened, indeed, even if it was to produce a catapult, he didn't have the financial resources. "Wait until you're done drawing and then ...... It's not too late to find the general again. ”

Cao Liang shook his head, Ma Jun wanted to count on Cao Shuang to help him, it was almost impossible, whether it was the current kind of serial thunderbolt or the counterweight catapult that would be made in the future, Cao Shuang was not interested at all.

So counting on Cao Shuang, that can't be counted on.

"If Mr. Ma wants to get the general's funding, there is almost no chance of success. In this way, we have a piece of land in the east of Luoyang City, and all the necessary materials are available, after Mr. Ma draws the drawings, you might as well go there, and you can easily make samples. ”

The Cao family does have a piece of land outside Luoyang City, more than 1,000 acres, fertile land, and many tenants, whether it is the use of manpower or material resources, it is more than enough.

This belongings, or Cao Liang's grandfather Cao Chun earned back, think at the beginning, Cao Chun followed Cao Cao to fight in the north and south, not only Cao Cao's personal guard, but also a fierce general who is good at fighting key battles, after his death, Cao Cao remembered his merits, so he specially gave the thousands of acres of fertile land in the east of Luoyang City to the Cao family.

Otherwise, how could a small pavilion of his family be so rich.

Ma Jun was overjoyed, and thanked him repeatedly, today Cao Liang can be regarded as his nobleman, Cao Liang not only solved the technical problems for him, but also solved the material needs that have plagued Ma Jun for many years, which is really an unexpected joy.

Cao Liang was even more secretly overjoyed, he could win over a scientific and technological talent like Ma Jun, which can be regarded as making a fortune, and famous generals are available at any time, but Ma Jun is definitely a scarce talent in this era.

Today's transaction is a win-win situation!